Atomera Inc (ATOM) Institutional Ownership

Institutions by Trading Activity

31,128,000Shares Outstanding

10,624,579Shares held by institutions

$91,265,134Value of institutional holdings

34.13%Institutional ownership %

1.74%Shares Changed QoQ

94No. of institutional investors

Atomera Inc (NASDAQ:ATOM) has 94 institutional investors with active 13F positions as of December 2025.

Their combined ownership stood at 33.7% of outstanding shares in December 2025, down from 34.1% in September 2025.
They increased total shares held in Atomera by 0.82% from last quarter, and the number of investors in ATOM increased 27.03% annually.
Among the 94 funds, 49 bought more Atomera shares, 28 sold down, and 17 held their ground.
Altogether, these fund groups held 10.49Mn shares in ATOM by December 2025, up by 85.12K shares quarter on quarter, and up 1.61Mn shares year over year.
As of December 31, 2025, the biggest holder of Atomera is SLT Holdings LLC at 12.5K shares, representing 0.04% of shares outstanding.
Leading buyers of Atomera shares for the quarter ending December 2025 were Fortitude Family Office, LLC (390), Root Financial Partners, LLC (82), True Wealth Design, LLC (32), IFP Advisors, Inc (10), Farther Finance Advisors, LLC (2).
Top sellers of ATOM stock for the quarter ending December 2025 included GAMMA Investing LLC (40).
According to Business Quant data, leading holders of ATOM for December 2025 are SLT Holdings LLC (12.5K), ACT WEALTH MANAGEMENT, LLC (10.0K), GHP Investment Advisors, Inc. (4.43K), ARMSTRONG ADVISORY GROUP, INC (665), Fortitude Family Office, LLC (620), GAMMA Investing LLC (618), Sterling Capital Management LLC (190), Root Financial Partners, LLC (82), True Wealth Design, LLC (32), IFP Advisors, Inc (10).

10,624,579 Total Shares Held

Rows:

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	1,973,176	76,330	4.02%	$4,360,720.00
VANGUARD GROUP INC	31 Dec, 2025	1,645,828	9,890	0.60%	$3,637,279.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	740,985	17,658	2.44%	$1,637,871.00
AVENIR CORP	31 Dec, 2025	614,385	10,000	1.65%	$1,357,791.00
HOLLENCREST CAPITAL MANAGEMENT	31 Dec, 2025	606,546	7,479	1.25%	$1,340,467.00
Quantum Private Wealth, LLC	31 Dec, 2025	598,847	71,739	13.61%	$1,323,453.00
State Street Corp	31 Dec, 2025	489,147	42,569	9.53%	$1,081,015.00
Baird Financial Group, Inc.	31 Dec, 2025	312,120	-663,541	-68.01%	$689,785.00
Goldman Sachs Group Inc	31 Dec, 2025	277,522	172,893	165.24%	$613,324.00
Northern Trust Corp	31 Dec, 2025	276,128	-17,406	-5.93%	$610,243.00
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	31 Dec, 2025	185,054	168,163	995.58%	$6,905,101.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	181,328	90,386	99.39%	$400,735.00
MARSHALL WACE, LLP	31 Dec, 2025	179,276	179,276	0.00%	$396,199.00
JANE STREET GROUP, LLC	31 Dec, 2025	171,424	121,457	243.07%	$378,847.00
Morgan Stanley	31 Dec, 2025	171,001	89,429	109.63%	$377,913.00
Pathstone Holdings, LLC	31 Dec, 2025	167,905	167,905	0.00%	$371,071.00
Sargent Investment Group, LLC	31 Dec, 2025	166,050	2,500	1.53%	$366,971.00
UBS Group AG	31 Dec, 2025	152,915	-17,248	-10.14%	$337,942.00
Westside Investment Management, Inc.	31 Dec, 2025	149,447	-38,505	-20.49%	$330,285.00
BROWN ADVISORY INC	31 Dec, 2025	100,243	-52,200	-34.24%	$221,537.00

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